Thermostat



FIG. 1 is an elevational perspective view of a thermostat;

FIG. 2 is a front view of the thermostat;

FIG. 3 is a rear view of the thermostat;

FIG. 4 is a side view of the thermostat;

FIG. 5 is a top view of the thermostat; and,

FIG. 6 is a bottom view of the thermostat.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a thermostat, as shown and described. 